package lab03.Test12;

import java.sql.*;

/**
 * Created by Aguest on 2017/12/8.
 */
public class Test {
        public static void main(String[] args) {
            //加载驱动
            Connection connection=null;
            Statement statement=null;
            ResultSet resultSet = null;
            //表名字：t_users
            String sql="select * FROM t_users";
            String sql1="select * FROM t_users where username='admin'" ;
            String sql2="select * from t_users where username='admin' and password='123456'";
            String sql3="select * from t_users where register_datetime>10000000";
            try {
                Class.forName("com.mysql.jdbc.Driver");
                try {
                    connection= DriverManager.getConnection(
                            "jdbc:mysql://localhost:3306/java_2017?serverTimezone=UTC",
                            "root",
                            "123456"
                    );
                } catch (SQLException e) {
                    e.printStackTrace();
                }

                statement = connection.createStatement();
                resultSet = statement.executeQuery(sql);
                resultSet = statement.executeQuery(sql1);
                resultSet = statement.executeQuery(sql2);
                resultSet = statement.executeQuery(sql3);
                while (resultSet.next()) {
                    System.out.println(resultSet.getString(1) + " " + resultSet.getString(2) + " " + resultSet.getString(3) + " " + resultSet.getString(4));
                }
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            } catch (SQLException e) {
                e.printStackTrace();
            }finally {
                try {
                    statement.close();
                    connection.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }
    }